infida
infida is a Latin form of infidus, meaning “unreliable, treacherous”. It is the nominative singular feminine adjective.
Found 26 times in the Latin texts on Socratos.
Where it is used
Ovid, Ars Amatoria 3.578: Et sit in infida proditione fides.
All forms of infidus (declension table)
Source: Socratos (socratos.org), a free reader for Ancient Greek and Latin. Grammar from the Perseus Treebank and Morpheus; dictionary entries from Lewis & Short, A Latin Dictionary (Perseus Digital Library, CC BY-SA). Counts are from the texts on Socratos.